CN110416742A - A kind of design of frivolous broadband absorbing Meta Materials - Google Patents
A kind of design of frivolous broadband absorbing Meta Materials Download PDFInfo
- Publication number
- CN110416742A CN110416742A CN201910679558.XA CN201910679558A CN110416742A CN 110416742 A CN110416742 A CN 110416742A CN 201910679558 A CN201910679558 A CN 201910679558A CN 110416742 A CN110416742 A CN 110416742A
- Authority
- CN
- China
- Prior art keywords
- wave
- absorbing
- meta materials
- single cell
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
- H01Q17/008—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems with a particular shape
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention provides a kind of design of frivolous broadband absorbing Meta Materials, the broadband absorbing metamaterial structure includes bottom copper metal plate, intermediate FR4 medium substrate and surface layer have the copper metal film layer of period configuration, the single cell structure of metallic diaphragm by after cutting square metal piece and two circular metal plates constitute, it can be respectively in X (8~12GHz) wave band, realize that full frequency band electromagnetic wave absorptivity is higher than 90% in the response wave band of Ku (12~18GHz) wave band under vertical polarization and horizontal polarization, and the absorptivity of the oblique incidence electromagnetic wave for being up to 40 ° in X-band is more than 80%, with wide angle of incidence efficient absorption characteristic.The present invention has the characteristics that design method is simple, absorbing property can easily be accommodated, thickness is small and insensitive to polarization and wide-angle, practical application feasibility is big, has been widely used in X, Ku microwave band wideband stealth material, the fields such as the wave covering and wave absorbing device part tool of suction.
Description
Technical field
The invention belongs to electromagnetic functional material fields, and in particular to a kind of frivolous broadband absorbing metamaterial structure and design side
Method.
Background technique
Radar absorbing can effectively absorb incident electromagnetic wave, reduce target-echo intensity, be weapon, equipment and special
The important technology approach of device radar wave camouflage.Radar absorbing will realize excellent absorbing property, it is necessary to while meeting two
A condition: first is that the surface impedance of absorbing material will match with free space wave impedance, to ensure that electromagnetic wave is able to enter material
Material is internal；Second is that absorbing material will have suitable loss, thus effectively dissipative electromagnetic energy.But the two require to be often phase
It is mutually contradictory, it is lost that biggish material impedance is lower, and very little is often lost in the high material of impedance.
Traditional absorbent structure is all based on greatly Salisbury absorbing screen, Jaumman absorber and multilayer impedance matching and inhales wave
Material, existing typical problem are the disadvantages of thickness are big, absorption band is narrow.The main method for expanding absorption band is to increase thickness
Or absorbent contents are improved, but influenced by material electromagnetic parameter Dispersion or resonance electricity thickness, it is difficult to realize small thickness
In the case of broadband absorbing performance.
The emergence and development of Meta Materials enable people to the electromagnetic performance from macro-size roofing control material, thus significantly
The interaction relationship for influencing material and electromagnetic wave, the application in electromagnetic wave absorption technology is to have become a popular research
Direction.The electromagnetic performance of Meta Materials depends primarily on the form and arrangement of its artificial structure's unit, passes through the adjustment of structural parameters
The controlled material effective electromagnetic parameter and impedance operator that can be convenient.Compared with traditional absorbing material, its wideband can be got rid of
Absorbing property has that thickness is thin, absorption band is wide etc. a little to the dependence of the intrinsic electromagnetic parameter Dispersion of material.
Meta Materials are realized based on EMR electromagnetic resonance to the absorption of the single-frequency or multifrequency of electromagnetic wave, but the absorption in broadband there are still
Certain difficulty usually need to realize respectively impedance matching and efficient absorption using multilayered structure, so that material preparation difficulty increases.
Therefore, the simple metamaterial structure of research and utilization realizes that wideband, efficient absorption have huge practical application value.
Summary of the invention
Present invention aim to address microwave current absorbing meta-materials to be difficult in lower thickness, surpasses material especially with single layer
Material absorbent structure cannot achieve the technical problem that high-efficient wide-frequency inhales wave and multilayer absorbing meta-material preparation process complexity.
The present invention provides a kind of frivolous broadband absorbing Meta Materials,
It (1) include the metallic diaphragm that underlying metal plate, intermediate medium substrate and surface layer have period configuration, the period gold
Category film layer is repeated cyclically by multiple single cell structures to be rearranged；
(2) underlying metal plate and coating metal film layer material are copper, and with a thickness of 0.035mm, intermediate medium plate is FR4, are situated between
Electric constant is 3.8~4.2, with a thickness of 2.2~3.0mm.
(3) single cell structure by after cutting square metal piece and two circular metal plates constitute, single cell structure present two dimension
Array distribution, unit cell period size are 8.0~10.0mm.
(4) the length L of square metal piece is 8.0~8.3mm, the circle that different radii is diagonally respectively adopted of square metal piece
It being cut, radius is 2.0~3.5mm, and the center of circle is located on the diagonal line of square metal piece, the two of the single cell structure
A circular metal plate is symmetrically distributed in the diagonal positions of single cell structure, and radius is 1.0~2.5mm.
Effective income of the invention is as follows:
1, a kind of frivolous broadband absorbing Meta Materials proposed by the present invention, are designed by using this method by the copper metal period
It is distributed the wideband Meta Materials absorbent structure of composition, wave is inhaled in adjustable realization different frequency range broadband, and in target frequency bands, it is super to inhale wave
There is good matching between the surface impedance and free space of material structure.
2, a kind of frivolous broadband absorbing Meta Materials proposed by the present invention, pass through the adjusting of periodic structure parameter, Ke Yishi
The full frequency band of the different frequency ranges such as existing X, Ku absorbs by force, and traditional resonant mode absorbing meta-material is typically only capable in relatively narrow frequency band
Realize strong absorption, absorbing meta-material structure proposed by the present invention has apparent advantage in wideband absorption aspects.
3, a kind of frivolous broadband absorbing Meta Materials proposed by the present invention, since absorbing meta-material structure is with good symmetrical
Property, there is the insensitive and big insensitive characteristic of incidence angle that polarizes.Wave frequency section is inhaled in X/Ku target, absorbing meta-material is in vertical polarization
With the electromagnetic wave absorptivity that 90% or more full frequency band can be achieved under horizontal polarization, and absorption peak frequency position is more stable；It is right
In oblique incidence electromagnetic wave, the case where absorption band width can also being kept not change substantially in 0~40 ° of angular range
Under, absorptivity is still higher than 80%, has good absorption stability.
Detailed description of the invention
Fig. 1 is the absorbing meta-material structure of the method for the present invention；
Fig. 2 is absorbing meta-material surface layer single cell structure pattern；
The suction wave rate of Meta Materials when Fig. 3 is different polarized wave normal incidences in embodiment 1；
The match condition of Meta Materials and atmosphere impedance when Fig. 4 is electromagnetic wave normal incidence in embodiment 1；
The situation of change of Meta Materials effective dielectric constant when Fig. 5 is electromagnetic wave normal incidence in embodiment 1；
The situation of change of Meta Materials equivalent permeability when Fig. 6 is electromagnetic wave normal incidence in embodiment 1；
Meta Materials inhale the situation of change of wave rate when Fig. 7 is horizontal polarized wave oblique incidence in embodiment 1；
Meta Materials inhale the situation of change of wave rate when Fig. 8 is vertically polarized wave oblique incidence in embodiment 1；
The suction wave rate of Meta Materials when Fig. 9 is different polarized wave normal incidences in embodiment 2；
The match condition of Meta Materials and atmosphere impedance when Figure 10 is electromagnetic wave normal incidence in embodiment 2；
Meta Materials inhale the situation of change of wave rate when Figure 11 is horizontal polarized wave oblique incidence in embodiment 2；
Meta Materials inhale the situation of change of wave rate when Figure 12 is vertically polarized wave oblique incidence in embodiment 2；
The suction wave rate of Meta Materials when Figure 13 is different polarized wave normal incidences in embodiment 3；
The match condition of Meta Materials and atmosphere impedance when Figure 14 is electromagnetic wave normal incidence in embodiment 3.
Specific embodiment
The present invention is intended to provide a kind of frivolous broadband absorbing Meta Materials, pass through dielectric substrate thickness, periodic unit structure
Shape, size and arrangement mode design, regulate and control the coupling response mechanism of metamaterial structure and electromagnetic wave, realize structure type letter
List, lower cost for material, thickness are thin, inhale the roomy broadband absorbing Meta Materials of wavestrip.
Detailed explanation and illustration is carried out to the present invention with reference to the accompanying drawings and examples.
The present invention provides a kind of frivolous broadband absorbing Meta Materials, and structure is as shown in Figure 1, include underlying metal plate, centre
Medium substrate and surface layer have the metallic diaphragm of period configuration, and the period metallic diaphragm is repeated cyclically by multiple single cell structures
It rearranges.
Wherein, underlying metal plate and coating metal film layer material are copper, and with a thickness of 0.035mm, intermediate medium plate is FR4,
Dielectric constant is 3.8~4.2, with a thickness of 2.2~3.0mm.
Wherein, absorbing meta-material surface layer single cell structure pattern as shown in Fig. 2, single cell structure by the square metal piece after cutting
It is constituted with two circular metal plates, two-dimensional array distribution is presented in single cell structure, and unit cell period size is 8.0~10.0mm.
Meta Materials with this structure, upper layer periodicity copper metal pattern generates induced current when electromagnetic wave incident, together
When under incidence wave magnetic fields, the upper layer copper metal periodic pattern of absorbing meta-material structure and underlying metal constitute magnetic resonance
Device generates reverse current in the underlying metal of metamaterial structure, so that the electromagnetic energy of incident electromagnetic wave is in intermediate FR4 dielectric layer
In be depleted and decay.
The single cell structure of broadband absorbing metamaterial structure shown in the present invention is by the square metal piece and two circles after cutting
Shape sheet metal is constituted, and the length L of square metal piece is 8.0~8.3mm, and different radii is diagonally respectively adopted in square metal piece
Circle is cut, and radius is 2.0~3.5mm, and the center of circle is located on the diagonal line of square metal piece, the single cell structure
Two circular metal plates are symmetrically distributed in the diagonal positions of single cell structure, and radius is 1.0~2.5mm.
In the prior art, the pyramid structure or cross, square frame knot that the structure of Meta Materials is made of three-decker
Structure, and the Meta Materials that the present invention designs, using the structure for cutting patch type, only one layer of structure can reach technical requirements, than existing
There is the structure of Meta Materials in technology simpler, the effect reached is more preferable.
This frivolous broadband absorbing Meta Materials proposed by the present invention, the absorption after parameter optimization in 8~12GHz wave band
Rate is above 90%, and wave-absorbing effect covers entire X frequency range；Absorptivity after parameter optimization in 6~12GHz wave band is above
90%；Absorptivity in 12~18GHz wave band is above 90%, and wave-absorbing effect covers entire Ku frequency range.
Frivolous broadband absorbing metamaterial structure proposed by the present invention has the insensitive characteristic that polarizes, in vertical polarization and water
Under mean pole, in X-band be up to 40 ° oblique incidence electromagnetic wave absorptivity more than 80%, it can be achieved that wide angle is efficient
It absorbs.
Absorbing meta-material structure of the invention only includes copper metal plate, FR4 intermediate medium substrate and surface layer copper period configuration
Film layer, structure is simple, and material is easy to get, and the adjustable range of surface layer copper period structure parameters is big, suction wave design effect is good, and wideband is oblique
Absorbing property is penetrated better than conventional resonance absorbing meta-material.Three examples being embodied using the present invention are given below.
Embodiment 1
Absorbing meta-material structure referring to Fig.1, including underlying metal plate, intermediate medium substrate and surface layer have period configuration
Metallic diaphragm.Underlying metal plate and coating metal film layer use copper metal, and thickness is 0.035mm, conductivity 5.96
×107S/m；Intermediate medium substrate uses FR4, and with a thickness of 2.8mm, dielectric constant is 4.3 (1+0.025i).
For the pattern of surface layer periodic unit referring to shown in Fig. 2, the period P of unit is 9.2mm.After coating metal film layer is by cutting
Square metal piece and two circular metal plates constitute, the length L of square metal piece is 8.28mm, is located on diagonal line with the center of circle
Two pairs of round square shaped sheet metals cut, the relative position of center of circle O1 and unit cell center O are (- 2.42mm, 2.42mm), half
Diameter r1 is 3.3mm；The relative position of center of circle O2 and unit cell center O is (- 3.63mm, -3.63mm), and radius r2 is 2.0mm.Separately
Outside, two circular metal plates are on the diagonal line of rectangular sheet metal after cutting in unit, the center of circle position YeO1, and radius r3 is
1mm。
The suction wave rate of Meta Materials when Fig. 3 is electromagnetic wave normal incidence, it can be seen that the absorbing material inhales wave rate and is less than -10dB
The frequency range of (inhale wave rate > 90%) covers the entire X-band of 8~12GHz, and inhaling wave frequency bandwidth is more than 4GHz, and the suction
Wave Meta Materials are insensitive to polarization mode, and the absorptivity under horizontal polarization and vertical polarization is closer to.Fig. 4 be electromagnetic wave just
The match condition of Meta Materials and free space impedance when incident, due to introducing periodical sub-wavelength structure unit, equivalent impedance
Real and imaginary parts respectively close to 1 and 0, illustrate that there is good electromagnetic matching on Meta Materials surface and free space.Fig. 5 and figure
6 when being electromagnetic wave normal incidence respectively Meta Materials effective dielectric constant and equivalent permeability situation of change.Fig. 7 is horizontal polarized wave
Meta Materials inhale the situation of change of wave rate when oblique incidence, and the suction wavestrip of the Meta Materials wide (inhale wave rate > 90% when) is with incidence angle
Increase and reduced, is that 40 ° of Time Bandwidth width are still greater than 3GHz to incidence angle, if considering to inhale wave rate > 80%, in incidence angle
Entire X-band still can be covered when being 40 °.Meta Materials inhale the situation of change of wave rate when Fig. 8 is vertically polarized wave oblique incidence, it is seen that
Meta Materials, which increase it with incidence angle in vertical polarization, which inhales the wide reduction degree of wavestrip, to surpass lower than horizontal polarization situation
Material is more stable to the absorbing property of vertically polarized wave.
Embodiment 2
Absorbing meta-material structure type referring to Fig.1, underlying metal plate and coating metal film layer use copper metal, and thickness is equal
For 0.035mm；Intermediate medium substrate uses FR4, with a thickness of 2.9mm；The period P of surface layer periodic unit is 9.18mm, rectangular gold
The length L for belonging to piece is 8.26mm, and two pairs on diagonal line round square shaped sheet metals are located at the center of circle and are cut, center of circle O1 and list
The relative position of born of the same parents center O is (- 2.42mm, 2.42mm), and radius r1 is 3.3mm；The relative position of center of circle O2 and unit cell center O
It is 2.0mm for (- 3.63mm, -3.63mm), radius r2.Two circular metal plates rectangular sheet metal after cutting in unit
On diagonal line, the center of circle position YeO1, radius r3 is 2.5mm.
Fig. 9 be electromagnetic wave normal incidence in the case of Meta Materials suction wave rate, it can be seen that the absorbing material inhale wave rate be less than-
The frequency range of 10dB covers 6~12GHz, and inhaling wave frequency bandwidth is more than 6GHz.Meta Materials and atmosphere when Figure 10 electromagnetic wave normal incidence
The match condition of impedance illustrates impedance matching property of the Meta Materials with wideband in 6~12GHz.Figure 11 and Figure 12 are respectively
Meta Materials inhale the situation of change of wave rate when horizontal polarized wave and vertically polarized wave oblique incidence, and the Meta Materials are when incidence angle is 40 °
80% is all larger than in 6-12GHz frequency range interior suction wave rate.
Embodiment 3
Absorbing meta-material structure type referring to Fig.1, underlying metal plate and coating metal film layer use copper metal, and thickness is equal
For 0.035mm；Intermediate medium substrate uses FR4, with a thickness of 2.4mm；The period P of surface layer periodic unit is 9mm.Square metal piece
Length L be 8.1mm, two pairs on diagonal line round square shaped sheet metals are located at the center of circle and are cut, in center of circle O1 and unit cell
The relative position of heart O is (- 2.42mm, 2.42mm), and radius r1 is 3.3mm；The relative position of center of circle O2 and unit cell center O be (-
3.63mm, -3.63mm), radius r2 is 2.0mm.Two circular metal plates are located in unit cut after rectangular sheet metal it is diagonal
On line, the center of circle position YeO1, radius r3 is 1.3mm.
Figure 13 be electromagnetic wave normal incidence in the case of Meta Materials suction wave rate, it can be seen that the absorbing material inhale wave rate be less than-
The frequency range of 10dB covers 12~18GHz, and inhaling wave frequency bandwidth is more than 6GHz.Meta Materials and atmosphere when Figure 14 electromagnetic wave normal incidence
The match condition of impedance illustrates impedance matching property of the Meta Materials with wideband in 12~18GHz.
In conclusion wave is inhaled in the suction wave frequency section of the absorbing meta-material structure of the present invention, suction wave rate and not same polarization oblique incidence
Performance can design feature it is obvious, different application can be adapted to by the adjusting of FR4 thickness of dielectric layers, surface layer periodic structure parameter
Environment and performance requirement；Absorbing meta-material structure has good only with copper and two kinds of FR4 raw material that are at low cost, being easy to get
Affordability can be widely applied to the wideband stealth material of X, Ku microwave band, inhale the fields such as wave covering and wave absorbing device part.
Claims (1)
1. a kind of design of frivolous broadband absorbing Meta Materials, it is characterised in that:
(1) include underlying metal plate, intermediate medium substrate and surface layer have period configuration metallic diaphragm, the metallic diaphragm by
Multiple single cell structures, which are repeated cyclically, to be rearranged；
(2) underlying metal plate and coating metal film layer material are copper, and with a thickness of 0.035mm, intermediate medium plate is FR4, and dielectric is normal
Number is 3.8~4.2, with a thickness of 2.2~3.0mm；
(3) single cell structure by after cutting square metal piece and two circular metal plates constitute, single cell structure present two-dimensional array
Distribution, unit cell period size are 8.0~10.0mm；
(4) the length L of square metal piece is 8.0~8.3mm, and the circle that different radii is diagonally respectively adopted of square metal piece carries out
Cutting, radius are 2.0~3.5mm, and the center of circle is located on the diagonal line of square metal piece, two circles of the single cell structure
Shape sheet metal is symmetrically distributed in the diagonal positions of single cell structure, and radius is 1.0~2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679558.XA CN110416742B (en) | 2019-07-26 | 2019-07-26 | Light and thin broadband wave-absorbing metamaterial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679558.XA CN110416742B (en) | 2019-07-26 | 2019-07-26 | Light and thin broadband wave-absorbing metamaterial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110416742A true CN110416742A (en) | 2019-11-05 |
| CN110416742B CN110416742B (en) | 2020-12-08 |
Family
ID=68363413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910679558.XA Active CN110416742B (en) | 2019-07-26 | 2019-07-26 | Light and thin broadband wave-absorbing metamaterial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110416742B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262039A (en) * | 2020-02-12 | 2020-06-09 | 成都信息工程大学 | Broadband metamaterial wave-absorbing unit based on resistive film and wave-absorbing material |
| CN113067166A (en) * | 2021-03-23 | 2021-07-02 | 广东顺德西安交通大学研究院 | Ultrathin high-temperature-resistant broadband wave absorbing body, wave absorbing plate and part |
| CN113690631A (en) * | 2021-07-23 | 2021-11-23 | 中国人民解放军军事科学院国防科技创新研究院 | X-waveband efficient wave-absorbing super-structure surface material |
| CN113745842A (en) * | 2021-08-23 | 2021-12-03 | 东风汽车集团股份有限公司 | Metamaterial wave-absorbing structure applied to millimeter wave radar and vehicle antenna thereof |
| CN115954682A (en) * | 2023-02-28 | 2023-04-11 | 湖南博翔新材料有限公司 | Light wave-absorbing material and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8106850B1 (en) * | 2006-12-21 | 2012-01-31 | Hrl Laboratories, Llc | Adaptive spectral surface |
| CN102760968A (en) * | 2012-08-03 | 2012-10-31 | 深圳光启创新技术有限公司 | Wideband wave absorbing metamaterial |
| CN104682010A (en) * | 2013-12-03 | 2015-06-03 | 深圳光启创新技术有限公司 | Wave-transparent meta-material |
| WO2016209181A1 (en) * | 2015-06-22 | 2016-12-29 | Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi | A radar absorber |
| CN108363119A (en) * | 2018-01-24 | 2018-08-03 | 北京邮电大学 | A kind of device of the metal-dielectric metamaterial structure of Terahertz frequency range |
| CN108666765A (en) * | 2018-04-28 | 2018-10-16 | 中国人民解放军军事科学院国防科技创新研究院 | A kind of adjustable absorbent structure of ultra-wideband microwave dynamic based on graphene |
| CN110048237A (en) * | 2019-05-05 | 2019-07-23 | 电子科技大学 | The adjustable X-band absorbing material of electricity |
-
2019
- 2019-07-26 CN CN201910679558.XA patent/CN110416742B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8106850B1 (en) * | 2006-12-21 | 2012-01-31 | Hrl Laboratories, Llc | Adaptive spectral surface |
| CN102760968A (en) * | 2012-08-03 | 2012-10-31 | 深圳光启创新技术有限公司 | Wideband wave absorbing metamaterial |
| CN104682010A (en) * | 2013-12-03 | 2015-06-03 | 深圳光启创新技术有限公司 | Wave-transparent meta-material |
| WO2016209181A1 (en) * | 2015-06-22 | 2016-12-29 | Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi | A radar absorber |
| CN108363119A (en) * | 2018-01-24 | 2018-08-03 | 北京邮电大学 | A kind of device of the metal-dielectric metamaterial structure of Terahertz frequency range |
| CN108666765A (en) * | 2018-04-28 | 2018-10-16 | 中国人民解放军军事科学院国防科技创新研究院 | A kind of adjustable absorbent structure of ultra-wideband microwave dynamic based on graphene |
| CN110048237A (en) * | 2019-05-05 | 2019-07-23 | 电子科技大学 | The adjustable X-band absorbing material of electricity |
Non-Patent Citations (2)
| Title |
|---|
| NGUYEN THI QUYNH HOA等: "Facile design of an ultra-thin broadband metamaterial absorber for C-band applications", 《 SCIENTIFIC REPORTS》 * |
| 熊旋等: "一种基于超表面的超宽带THz吸波体", 《广东工业大学学报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262039A (en) * | 2020-02-12 | 2020-06-09 | 成都信息工程大学 | Broadband metamaterial wave-absorbing unit based on resistive film and wave-absorbing material |
| CN113067166A (en) * | 2021-03-23 | 2021-07-02 | 广东顺德西安交通大学研究院 | Ultrathin high-temperature-resistant broadband wave absorbing body, wave absorbing plate and part |
| CN113067166B (en) * | 2021-03-23 | 2024-04-12 | 广东顺德西安交通大学研究院 | Ultra-thin high temperature resistant broadband wave absorber, wave absorbing plate and part |
| CN113690631A (en) * | 2021-07-23 | 2021-11-23 | 中国人民解放军军事科学院国防科技创新研究院 | X-waveband efficient wave-absorbing super-structure surface material |
| CN113690631B (en) * | 2021-07-23 | 2023-11-03 | 中国人民解放军军事科学院国防科技创新研究院 | X-band efficient wave-absorbing super-structured surface material |
| CN113745842A (en) * | 2021-08-23 | 2021-12-03 | 东风汽车集团股份有限公司 | Metamaterial wave-absorbing structure applied to millimeter wave radar and vehicle antenna thereof |
| CN113745842B (en) * | 2021-08-23 | 2023-12-26 | 东风汽车集团股份有限公司 | Metamaterial wave-absorbing structure applied to millimeter wave radar and vehicle antenna thereof |
| CN115954682A (en) * | 2023-02-28 | 2023-04-11 | 湖南博翔新材料有限公司 | Light wave-absorbing material and application thereof |
| CN115954682B (en) * | 2023-02-28 | 2023-09-12 | 湖南博翔新材料有限公司 | Light wave-absorbing material and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110416742B (en) | 2020-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110416742A (en) | A kind of design of frivolous broadband absorbing Meta Materials | |
| Narayan et al. | Novel metamaterial-element-based FSS for airborne radome applications | |
| Pang et al. | Wideband RCS reduction metasurface with a transmission window | |
| CN103943967B (en) | Ultrathin metallic resistance composite multi-frequency absorbing material | |
| CN104682013A (en) | Wide-angle polarization-insensitive low RCS meta-material wave absorber | |
| CN105789912B (en) | Absorbing meta-material, antenna house and antenna system | |
| CN105098374B (en) | A kind of electromagnetic wave absorption structure of ultra wide band | |
| CN104993249A (en) | Single-passband bilateral wave-absorbing composite metamaterial and radome and antenna system including same | |
| Wang et al. | RCS reduction of array antenna by using bandstop FSS reflector | |
| CN110137690A (en) | A kind of Terahertz frequency range broadband Meta Materials wave absorbing device | |
| CN104201468A (en) | X/K-band composite metamaterial and radome-array integrated structure | |
| Noor et al. | Metamaterial dual polarised resistive Hilbert curve array radar absorber | |
| Tirkey et al. | The quest for perfect electromagnetic absorber: a review | |
| CN105811118B (en) | A kind of antenna | |
| CN207572523U (en) | A kind of cupuliform super wide band plane single pole sub antenna with ladder open-circuit structure floor | |
| CN102752995A (en) | Broadband wave-absorbing metamaterial | |
| CN109742554B (en) | Double-frequency Ku waveband circularly polarized sensitive wave absorber | |
| CN109830810A (en) | A kind of broadband Ultrathin microwave absorbing meta-material | |
| CN109560390A (en) | A kind of metallic resistance composite multi-layer multifrequency wideband wave absorbing material | |
| CN105576383A (en) | Ultrathin frequency-selective metamaterial capable of wave absorption from two sides, antenna cover and antenna system | |
| CN104347952A (en) | Meta-material and antenna | |
| CN106450793B (en) | A kind of broadband selective wave transparent polarization regulation electromagnetic structure | |
| CN206098624U (en) | Little modular construction of double -deck rotatory complementary super material of class Y type | |
| CN105789915B (en) | Dual polarized antenna | |
| CN111262039A (en) | Broadband metamaterial wave-absorbing unit based on resistive film and wave-absorbing material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |